CAMARO6 - View Single Post

Rich292 · 08-11-2025, 04:48 PM

There is no single best oil for your car. Rather, there's lots of good options.

While you're under warranty, just go ahead and use the dexosR rated oils. There are three of them, all from Mobil 1 in 0W40. There's Supercar, FS Euro, and ESP X4. Any will work fine and maintain warranty coverage. You can get deals from Autozone on the ESP X4, and Walmart has jugs of the FS Euro cheap all the time.

Once you don't care about the warranty, you have lots of options. The first thing to look for is specs. If you look at an oil and it carries API SP or SQ and an ACEA A3/B4 or C3 spec, that oil will be good for your car. Even better if it has a BMW LL01 or LL04, and/or Porsche A40 or C40.

As far as viscosity goes, the 0W40 is fine for the car in all temperatures. It will flow well on startup and has plenty of viscosity for all but the most extreme track temps. You can also use a bunch of other weights. On the winter side, each SAE rating is basically a range of how cold the oil can get before it exceeds a certain cold viscosity. Those limits are set for being able to pump the oil at low temps. 15W is rated to -4 F, 10W is rated to -13 F, 5W goes to -22, and 0W goes to -31 F. So all these oils can go way lower than you think. There's also some relationship to that cold number and how well the oil remains in the bearings. While a thinner oil does flow faster, a thicker oil leaves more of a film on the engine for the next startup. Even so, you're probably best with either a 0W or 5W in most conditions.

On the hot side, you can choose from 40 or 50 pretty easily. There's a bunch of oils that meet the specs in that weight. There are also some 30 weight oils that are good for the car. Those will typically be Euro oils, not the plain dexos stuff, that has the ACEA ratings (part of which is a HTHS value of 3.5 or greater, which is uncommon in most 30 weight oils, but is present in the ACEA rated 30 weights).

08-11-2025, 04:48 PM	#6
Rich292 Drives: 2015 Z/28 Join Date: Feb 2018 Location: Georgia Posts: 27	There is no single best oil for your car. Rather, there's lots of good options. While you're under warranty, just go ahead and use the dexosR rated oils. There are three of them, all from Mobil 1 in 0W40. There's Supercar, FS Euro, and ESP X4. Any will work fine and maintain warranty coverage. You can get deals from Autozone on the ESP X4, and Walmart has jugs of the FS Euro cheap all the time. Once you don't care about the warranty, you have lots of options. The first thing to look for is specs. If you look at an oil and it carries API SP or SQ and an ACEA A3/B4 or C3 spec, that oil will be good for your car. Even better if it has a BMW LL01 or LL04, and/or Porsche A40 or C40. As far as viscosity goes, the 0W40 is fine for the car in all temperatures. It will flow well on startup and has plenty of viscosity for all but the most extreme track temps. You can also use a bunch of other weights. On the winter side, each SAE rating is basically a range of how cold the oil can get before it exceeds a certain cold viscosity. Those limits are set for being able to pump the oil at low temps. 15W is rated to -4 F, 10W is rated to -13 F, 5W goes to -22, and 0W goes to -31 F. So all these oils can go way lower than you think. There's also some relationship to that cold number and how well the oil remains in the bearings. While a thinner oil does flow faster, a thicker oil leaves more of a film on the engine for the next startup. Even so, you're probably best with either a 0W or 5W in most conditions. On the hot side, you can choose from 40 or 50 pretty easily. There's a bunch of oils that meet the specs in that weight. There are also some 30 weight oils that are good for the car. Those will typically be Euro oils, not the plain dexos stuff, that has the ACEA ratings (part of which is a HTHS value of 3.5 or greater, which is uncommon in most 30 weight oils, but is present in the ACEA rated 30 weights).